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Composite Vs Aluminium hulls

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Old 02-26-2002, 02:17 AM
  #11
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Now we are getting somewhere.
Thanks for the help so far.

The real question is what would the ultimate "Mclaren F1" boat look like act like how many engines ect...
No cats please, not yet
This is a no holds barred "IF" you could have your own wish what would you want.

This is a serious question. not a poll or a quetionare.
This could become a reality and this will make a difference to the outcome of the project.
I know the normal answers but I am looking for something that "you" would buy.

The answers that are already here are great. Please keep it coming.
Thanks again.
pat W
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Old 02-26-2002, 05:41 AM
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Default The Advantages of Vacuum Bagging


Company: FOUNTAIN POWERBOATS INCORPORATED
Location: City of Washington
Beaufort County
Application: Fiberglass Boat Manufacturing (SIC 3731)
Process Modification: Equipment Change
Description: Conventional molding is not well suited for one
step lay-up with high strength-to-weight ratio
components which are cored with high performance
structural foam. Vacuum bag molding is probably
best suited for intermediate volume production of
small to medium size components. Products such as
seats, boat hatches, boat deck structures, cored
bulkheads, and other items with relatively shallow
draft molds are ideal for this type of processing.
Fountain Powerboats switched to vacuum bagging for
producing a number of small parts including engine
compartment hatch covers. Since the boats the
company produces are modeled after high
performance off shore racers, careful attention to
strength and weight are essential. The engine
hatch doors are basically flat panels with rounded
edges. They have a high strength foam core and a
finished thickness of approximately one inch.
Each unit is about twelve square feet in area.
When vacuum bags rather than spray guns are used
to deliver resin to the mold, pollution output can
be greatly reduced. Final distribution of the
resin to all layers of the lay-up is largely
controlled by the vacuum; therefore, gel coating
is the only step in vacuum bag requiring
atomization of the resin. Pumping or pouring
premixed catalyst and resin into a closed mold
eliminates fogging, bounceback, and overspray.
Vapor emissions and odor are further reduced by
confining the resins in the covered mold until
curing is complete. Quality and productivity may
also be improved as the vacuum bag molding system
produces parts with smooth surfaces and internal
structures which are free of voids and excess
resin.I am surprised to see this article mention Vacuum Bagging is only limited to small parts... Here is a LINK for Vacuum Bagging: TPICOMP.COM
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Old 02-26-2002, 10:51 AM
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Hey, where are the naked chicks?!

Seriously, this type of thread is the reason I come to OSO. Good to hear from you guys. Just start this type of thread in the technical Q&A forum so it doesn't get buried after a day.

There is a company in Canada that makes Hylite aluminum vee hulls. I saw a 40 something performance model a few years ago. I can't remember the details but there was something unique about the manufacturing process...something about the way the skin was supported in between major bulkheads...Don't have any details about power vs. speed, but it looked the part. Polyurethane paint, no rivets, welds not visible.

While we are blue skying, a company in Germany has developed a method of producing aluminum foam, to make strong but lightweight parts. Maybe an aluminum foam sheet would have the same resistance to impact as a well supported skin, without as much bracing, weight or welding. Kind of like coring in FRP.

Finally, I have heard that flex modulus is the reason wood is preferred to FRP in Formula tunnels. I don't know if that is still the case, but can someone describe the relative flexibility of wood, FRP and aluminum in a way that I can understand.

Oh yeah, the number for Hylite is (519) 326 - 0014.

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Old 02-27-2002, 12:32 AM
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The "Ultimate McLaren F1 boat" would:

1. Have the engine in the back(cat) not the front(vee).
2. Have wide low profile wheels/tires(cat), not spoked wheels(vee)
3. Have an aerodynamic body and fairings(cat), not a sedan body(vee)
4. Have a design speed that exceeded it's weight to horsepower potential (cat), not vice versa (vee)

5. Have maximum speed potential(cat) not run out of bottom at 100-110 mph (vee).

Etcetera, etcetera, etcetera.

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Old 02-28-2002, 11:53 PM
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OK,
What ould "you" build, be very specific cat or vee or tri hull ect.....
Don"t you guys or girls have a dream boat? Not the two legged kind. wrong forum for that.
pat W


more detail t2x I know this is tough to be serious on this board lately but I am hoping for real info and I will share what we are thinking also.
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Old 03-03-2002, 11:16 PM
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I could get very detailed , but I submit that a better example of the ultimate boat today exists in Pat Patel's new 46 Skater or Tom Cat 46's magnificent hull. This is where it's at today. Tomorrow's boats will derive from these hulls empirically.

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Old 03-03-2002, 11:34 PM
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Cool HOW FAST DID YOU WANNA GO???

http://www.kenwarby.com/new_boat.htm
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Old 03-03-2002, 11:57 PM
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Hey Sharkey....How's by ya?

I've met Ken Warby and saw his new boat last year..... He is the luckiest man on the planet....to wit...... he basically straps a jet to his ass and sits in a hydro....lights the fuse and gets away with it....... so far.

I pray for him.

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Old 03-04-2002, 12:54 AM
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Pat's boat seems to be what people who have the$$$ get. Out of all the boats that I have driven the 46 was one of my favorites. I have not seen any pics of it yet. I heard it was fried. I tend to prefer rudder boats like the uim guys run. but the steering at low speed stinks.
Does Kens boat run a prop?
We are making some progress. What about the rest of the boat?
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Old 03-04-2002, 01:06 AM
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The 42 Outerlimits Rock-It runs near 140mph as an open-cockpit boat with twin 1200hp Eickerts and Number 6 drives. Perhaps that is the way to go. Additionally, the new sit-down 42 Outerlimits runs over 120mph with twin Merc 900SCs and should run better than 140mph with twin 1300 Sterlings, 1400 Eickerts, 1500 Torques, etc.

Don't know what else to tell you. At those speeds, I can only imagine that whatever happens is going to happen fast enough that who ever is running the boat will need to anticipate problems not react to them. Remember, just because someone can afford to buy a boat that is extremely fast, doesn't mean the person can run it.
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